Emperor Taizong went to court, and Wang Zhu learned books from the right army, which won him a great deal, and served the Hanlin. When the Emperor listened to politics, he paid attention to the writing, and sent several attendants to hold books to show them. Every time he thought that he was not good, Taizong Yi deliberately went to school. Ask again, as before. Or ask for its meaning, and write: "The book is solid and good. If it is called good, I am afraid that the emperor will lose his intention." Later, the emperor's brushwork was excellent, surpassing the ancient times, and the world thought that it was beneficial to the rules.
(Wang Bizhi's Notes on Lushui Swallows)
Note ① Taizong: Zhao Kuangyi, Song Taizong. ② Dynasty: the reign of a generation of monarchs ③ Right Army: refers to Wang Xizhi, a famous calligrapher in Jin Dynasty. (4) Hanlin: the emperor's literary squire. ⑤ ⑤: In a hurry.
only notes, I hope it will help you a little.